Bridle for cableway systems.



PATENTED MAR. 17, 1903.

P. H. LAMB. y BRIDLE FOR GABLEWAY SYSTEMS.

APPLIOATON FILED DEG. 13, 1902.

N0 MODEL.

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UNTTED STATES FRANK H. LAMB, OF HOQUIAM, VASHINGTON.

BRIDLE FOR CABLEWAY SYSTEMS.

SPECIFICATION forming pari; 0f LettelS Patent N0. 722,721, dated March 17, 1903.

Application led December 13, 1902. Serial No. 135,129. (No model.)

T0 @ZZ whom, t ntcty concern:

Beit known that I, FRANK I-I. LAMB, a citizen of the United States, residing at Hoquiam,

in the county of Chehalis, State of Washin ton, haveinvented certain new and useful Improvements in Bridles for Oableway Systems, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a bridle for cableway systems, and particularly to a bridle adapted to slide upon a hauling-line and provided With a hook adapted to retain the free end of said line when passed around a load.

The invention has for an obj ect to improve the Vconstruction of bridle, so as to permit the ready introduction of the line therein and to aord a bearing for the line which permits a free movement of the bridle thereon.

A further object of the inventionis to provide a latch adapted to release the free end of the line from the bridle when the line is.Y

slackened.

Other and further objects and advantages I' of the invention will be hereinafter set forth, and the novel features thereof defined by the appended claims.

2 2 of Fig. l; Fig. 3, a vertical section on the line 3 3 of Fig. 2; Fig. 4, an elevation showing the invention applied to a load; Fig. 5, a detail of a link secured to the free end of the line, and Fig. 6 a detail perspective of the latch. Y

Like letters of reference refer to like parts in the several figures of the drawings.

The letter A designates a bridle, which is preferably formed of a body A and a front plate A2, which are formed with an overlapping joint A3 at one side of the-bridle and provided with journaling-apertures in alinement with each other, adapted to receive the pintles B of the bearing-rollers B, while the body and front plate are secured together by bolts A4 of any desired construction. Be-

tween the free edge of the front plate A2 and overhanging lip A5 of the body an opening A6 is provided, of suliicient diameter to perout the necessity of threading the same therethrough.

At one side of the bridlea 4hook D is provided and adapted to receive any desired form of loop upon the free end of the hauling-line C-for instance, a link C', adapted to be connected to the line by means of an,

Aof the bridle upon the haulingline, and the front plate thereof is provided at its ends with lugs A8, extending outward therefrom to assist in retaining the cable within the' channel and upon the bearing-rollers.

In the operation of the invention the load to be lifted-for instance, a log, as shown at O3 in Fig. Lt--is surroundedby the haulingline C, and the draft thereon causes the link C to press the latch inward, while the movement of the hauling-line through the bridle to draw the same taut is facilitated by the rollers B. The disposition of the opening at one side of the bridle permits the haulingline to be inserted therein at any time, and when the line is slackened the latch under spring-pressure will force the link at the free end from the hook, as shown by full lines in Fig. 1, While as soon as strain is applied upon the line the link will enter the hook, as shown by dotted lines in said figure.

It will be obvious that the bearing-rollers may be omitted from the bridle, if found desirable, as well as the unhooking-latch, while other changes may be made in the details of construction and configuration without departing from the spirit of the invention as defined by the appended claims.

Having` described my invention and set forth its merits, what I claim, and desire to secure by Letters Patent, is-

1. A device of the class described comprising a casing to receive a hauling-line having a curved channel therethrough, a hook for the free end of said line at one side of said IOO channel, and bearing-rollers pivoted in said casing at one side of said channel and adapted to contact with saidvline; substantially as specified.

2. Adevice of the class described comprising a casing to receive a hauling-line having a curved channel therethrough, a hook for the free end of said line at one side of said channel, bearing-rollers pivoted in said casing at one side of said channel and adapted to contact with said line, a pivoted latchplate mounted in said hook, and a spring to normally project said plate; substantially as specified.

3. In a device of the class described, a casing having a channel therein and an opening at one side of said channel for the introduction of a hauling-line, and a hook for the free end of said line at one side of said channel; substantially as specified.

4. In a device of the class described, a casing having a channel therein for a haulingline, a hook at one side of said channel, a latch-plate pivoted in said hook, and a tension-spring to normally project said plate; substantially as speciied.

5. In a device of the class described, a casing having a channel therein for a haulingline, a hook at one side of said channel, a latch-plate pivoted in said hook, a tensionspring to normally project said plate, and a link secured to the free end of said line to enter said hook; substantially as specified.

6. In a device of the class described, a body portion, atront plate thereto, bearing-rollers journaled in said body and plate, and an overhanging ilange from said body extending beyond the face of said plate; substantially as specified.

7. In a device of the class described, a body portion, a front plate thereto, bearing-rollers journaled in said body and plate, an overhanging ange from said body extending beyond the face of said plate, a hook carried by said body and provided with parallel ears, a latch-plate pivoted between said ears, and a spring secured to the body and bearing on said plate to normally project the same; substantially as specified.

In testimony whereof I affix my signature in presence of two Witnesses.

FRANK H. LAMB.

Witnesses:

R. E. DAWDY, WILHELM JENSEN. 

